JPH0223472B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a bobbin conveying system.

[Conventional technology]

Spinning bobbins produced by spinning machines, especially ring spinning machines, are unwound in an automatic winder, which is a rewinding process, and are rewound into a certain amount of package cages. There are empty bobbins with no yarn layer at all, half-bobbins that leave a large amount of yarn layer and can be re-supplied to the winder, and even bobbins with very little yarn left that can be re-supplied to the winder. These various bobbins are randomly discharged and sorted for each bobbin and stored in a box, or half-bobbins are automatically conveyed to a pick-out device, and empty bobbins are separated into only those with very little thread remaining and placed in a box. The box containing the empty bobbin is transported to a spinning machine, and the box containing the bobbin with very little remaining thread is transported to a worker's residual thread removal workshop, where the worker removes the empty bobbin from which the remaining thread has been removed. The process involves transporting the finished product to the spinning machine again.

[Problem that the invention seeks to solve]

On the other hand, in a spinning winder that is suitable for high-mix, low-volume production and in which a spinning frame and a winder are connected via a bobbin conveyance path, there is no problem as long as a certain number of bobbins circulate between the spinning frame and the winder, but as mentioned above, there is a very small amount of bobbins remaining. If only the bobbin with thread is removed and repaired, the number of bobbins circulating will gradually decrease.
A station for newly supplying empty bobbins is required, a device for extracting a bobbin with a very small amount of yarn remaining, and an empty bobbin supply device are required, and a plurality of conveying devices are required.

The present invention aims to solve the above problems.

[Means to solve the problem]

The present invention has residual yarn removal pieces 40, 41, 42 inside the conveyance path of the bobbin B discharged from the finder 4, and the bobbin B conveyed while being inserted in the tray 22 can be removed from both sides. Opening/closing member 3 to be held
8 and 39 are provided, and residual yarn removing devices ST1 and ST2 are provided which remove residual yarn from the bobbin by relative movement between the bobbin B and the bobbin in the axial direction.

[Effect]

Among the bobbins discharged from the winder, the remaining yarn on the bobbin with residual yarn is removed at a residual yarn removal device position along the conveyance path, and the bobbin becomes an empty bobbin and can be immediately conveyed to the spinning machine.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 and 2 show an example of a spinning winder. A spinning bobbin on which spun yarn produced by the spinning machine 1 is wound is inserted and supported by, for example, a peg on a transport band 2, transported in the longitudinal direction along the spinning machine 1, and fed into a bobbin supply device 3. The bobbin is inserted upright into a peg tray (FIG. 5) which is conveyed on a bobbin conveying means, such as a belt conveyor, which waits below, and is supplied to each winding unit 5 of the winder 4.

Reference numeral 6 denotes a preparation device having a yarn end pulling device for releasing the tail yarn of the bobbin 16 after spinning, a sensor for detecting the presence or absence of a yarn layer on the bobbin, and the like.

Bobbins are supplied to each winding unit of the winder 4 individually from the bobbin transport path 7 to the winding position of each unit while the bobbins are inserted into the peg tray. The empty bobbin after winding or the bobbin with remaining yarn is transported by an empty bobbin transport path 8 disposed along the winding unit.

A device ST1 for removing the remaining thread of the bobbin with very little remaining thread is disposed at the middle of the conveyance path 8, and a half-weld bobbin,
The empty bobbin passes through the device ST1, and the half-bobbin is supplied to the pick-up device 6 again through a branch path 9 and conveyance paths 10 and 11.

In addition, the empty bobbin is removed by the empty bobbin extraction device 12.
The bobbin is extracted from the tray, transported upward by an empty bobbin lifting device 13, and horizontally transported in the direction of arrow 18 by a belt conveyor 14 extending longitudinally above the spinning machine. The empty bobbin 15 that has been transferred to the end of the spinning machine is dropped and stored in the chute 16, and is transferred to the lower transport band 2 at the appropriate timing.
It is supplied and inserted into the empty peg above. On the other hand, the empty peg tray from which empty bobbins have been removed by the bobbin extraction device 12 is further transferred on the conveyor 11 to the position of the above-mentioned bobbin supply device 3, where it is supplied with a new spinning bobbin.

Further, among the bobbins discharged from the winder, only the remaining yarn of the bobbin with very little remaining yarn is removed in the residual yarn removing device ST1, and the bobbin is conveyed as an empty bobbin, and reaches the empty bobbin extracting device 12. ,
Empty bobbins are removed from the tray in the same manner as described above.

Further, other examples of the spinning winder are shown in FIGS. 3 and 4. That is, the conveyance path 19 surrounding the spinning frame 1 is continuous with the bobbin conveyance path 20 and the empty bobbin conveyance path 21 on the winder 4 side, and the winder 4 has a large number of winding units 15a to 15a as in the previous embodiment.
15n are arranged in parallel, and the empty bobbin discharged from the winder 4 is transferred on the conveyance path 21 while being inserted in the tray 22, and is transferred on the conveyance path 19 on the spinning machine 1 side in the direction of the arrow 23. . In this case, the size of the tray is a disc-shaped base with a diameter equal to the spindle pitch of the spinning machine, or if you use a tray that is half the size of the spindle pitch, it is possible to align the trays along the spinning machine. , simultaneous doffing operation using a doffing device is possible. The bobbin doffed by the spinning frame 1 is fed continuously or intermittently in the direction of the arrow 24, and then passes through the bobbin conveyance path 25 through the feed device 6.
The bobbin, which is ready for thread tying, is inserted into the tray and transferred to the winder 4. In the above-mentioned unwinding device 6, the tail yarn wound around the tail of the spinning bobbin is unwound, and the yarn end of a certain length is inserted into the core tube from the upper end of the bobbin and hangs down, and when rewinding, the yarn end that is hung down is unwound. is blown up, suctioned and held in a relay pipe, and guided to a thread tying device.

In addition, in this embodiment, not all trays with bobbins inserted therein are transported on the bobbin transport path 25, but trays lined up at the end of the spinning machine 1, that is, at positions surrounding the gear box 28 or the control box. Since the upper empty bobbin is not replaced with a spinning bobbin, the empty bobbin at that position is transferred to the conveyance path 2.
5, and when it reaches the branching path 26, a sensor that detects the presence or absence of a yarn layer determines that it is an empty bobbin, and it is sorted and transferred to the branching path 26 by an opening/closing gate driven by a rotary solenoid (not shown). The empty bobbin is transferred onto the empty bobbin conveyance path 27 again by bypass. In this way, only the tray with the bobbin inserted therein is supplied to the pick-up device 6, and the pick-out operation is performed. Reference numeral 29 denotes a branching path for transporting the bobbin which has been picked out incorrectly to the picking device 6 again, where the bobbin is placed on the conveying path 31 from the branching path 30 via the bypass 10, and the bobbin is picked out again.

The bobbin transported in the manner described above is automatically supplied to an automatic winder 4 similar to that of the previous embodiment and then automatically supplied to each winding unit to perform a rewinding process. The empty bobbin discharged from the winder 4 after winding is completed is still inserted into the tray and transported on the empty bobbin conveying path 21 toward the spinning machine 1 side, and is again corresponded to each spinning spindle of the spinning machine. The fish is transported to the desired position and preparations are made for doffing.

A branching path 9 for supplying the half bobbin to the pick-up device 6 again is provided at the midpoint of the transport path 21, and a remaining yarn removing device ST2 is provided at the midpoint of the transport path 21. A sensor for sorting half bobbins is arranged just before the branching path 9, and an opening/closing gate is provided to transfer only half bobbins onto the bypass 10. In addition, the residual yarn removing device ST2 distinguishes between bobbins with very little residual yarn and empty bobbins, and the empty bobbins are passed through and transferred to the spinning machine 1 side, and for bobbins with extremely little residual yarn, the residual yarn on the bobbin is removed. Empty bobbin conveyance path 2
There is only a tray on which empty bobbins are inserted, and the spinning machine 1 is transferred and supplied thereto.

Next, an example of the remaining thread removing devices ST1 and ST2 will be explained with reference to FIGS. 5 to 7.

Here, bobbin B is discharged from a winder (not shown).
is inserted into the peg 32 of the tray 22 and conveyed on the conveyor 33 in an upright state.

This residual yarn removing device is disposed on the conveyor 33, and includes a bobbin chuck 35 attached to the lower end of the lifting rod 34, and an opening/closing member 38 supported pivotably around fixed shafts 36, 37 so as to be able to open and close. ,39 and
It is composed of residual yarn removal pieces 40, 41, 42, etc. fixed oppositely to the lower portions of the opening/closing members 38, 39.

The fixed shafts 36, 3 fixed to the machine frame (not shown)
Pressing pieces 43, 44 for regulating the opening and closing positions of the members 38, 39 are pivotally supported at the upper ends of the substantially dogleg-shaped opening/closing members 38, 39 supported by the pressing pieces 43, 4.
4 and levers 45, 46 rotatably supported on fixed shafts 36, 37 are connected to each other by rods 47, 48, and both levers 45, 46 are further connected to another rod 4.
9 to connect and interlock.

One lever 46 is connected to an operating rod 50 that is moved up and down by a cam of a drive source (not shown), and the fixed shafts 36 and 37 are further connected to the lifting rod 34.
The roller support 5 provided on the rod 34 when lifting and lowering the rod 34
Guide rails 54 and 55 are pivotally mounted to guide rollers 52 and 53 that are pivotally supported by the guide rails 54 and 55, and guide grooves 56 and 57 are formed inside each of the guide rails 54 and 55. are inclined portions 58 and 59 that are slightly inclined outward.

The remaining yarn removal pieces 40, 41, 42 are semicircular first removal piece 40, second removal piece 41, and third removal piece 42, as shown in FIG.
The first and second removal pieces 40 and 41 are made of iron, and the third removal piece 42 is made of alternately laminated rubber layers and iron layers. It's summery.

Further, two-split bobbin guides 62, 63 are fixed to the lower ends of the opening/closing members 38, 39, and a spring 64 is provided at the upper end of the opening/closing members 38, 39.
is biased in the closing direction, and L-shaped stoppers 65, 66 are fixed to the inside of the center portion.

Details of the bobbin chuck 35 are shown in Figure 9 and 1.
1, the chuck 35 is connected to the chuck body 6.
7, and a pair of semi-cylindrical chuck pieces 70, 71 which are slightly rotatably supported by shafts 68, 69. Both chuck pieces 70 and 71 have springs 74 stretched between pins 72 and 73, respectively.
Normally, their upper ends are brought into contact with each other as shown in FIG. Further, inside each of the chuck pieces 70 and 71, a cylindrical bobbin insertion hole 75 that tapers slightly upward in the normal state is formed, and the upper part of the insertion hole 75 is a small diameter portion 76. , and a widening inclined surface 77 is formed at the bottom.

Balls 78 and 79 are provided at the top of the chuck body 67 and are biased inwardly by a spring, which guide grooves 80 and 81 formed in the lifting rod 34.
It is stuck inside.

A conical surface 82, a thin shaft portion 83, and a large-diameter disk portion 84 are formed in this order at the lower part of the lifting rod 34. The bobbin chuck 35 as a whole is slightly slidable relative to the lifting rod 34.

Next, the operation of the remaining yarn removing device will be explained.

This device operates in the order shown in FIGS. 5, 6, and 7. First, the bobbin B, which has been placed upright on the tray 22 and conveyed by the conveyor 33, is moved once to the 5th position by a stopper (not shown). It is stopped at a position directly below the residual yarn removing device shown in the figure.

When the stop is confirmed by a sensor or the like, the operating rod 50 is pushed down and the pressing piece 44 rotates to release the contact with the guide rail 55, and then lever 46, rod 49, lever 45 and rod 47 The pressing piece 43 also rotates and separates from the guide rail 54 via the.

As a result, the opening/closing members 38 and 39 are connected to the spring 6.
The pressure contact piece 43 opens in the direction a in FIG.
Another cam surface of 44 comes into contact with the guide rails 54, 55 and stops.

After the opening/closing members 38 and 39 are opened, the lifting rod 34 is lowered by a cylinder (not shown) and lifts the upper end of the stopped bobbin B to the bobbin chuck 35.
Insert inside.

At this time, the rollers 52 and 53 are connected to the guide grooves 56 and 5.
7, and is stopped at the fifth illustrated position by a stopper (not shown).

The bobbin B comes into contact with the side surface of the bobbin insertion hole 75 of the bobbin chuck 35 and gradually expands it, that is, the chuck pieces 70 and 71 are rotated in the direction of the arrow b in FIG. As shown in FIG. 10, with its upper end in contact with the disc portion 84 of the lifting rod 34, it is clamped and held by the chuck pieces 70 and 71 by the force of the spring 74.

Next, the lifting rod 34 is raised, and then the operating rod 50 is pulled up and the opening/closing members 38, 39 are closed, resulting in the state shown in FIG. Opening/closing member 38, 3
9 connects the protruding parts of the pressing pieces 43 and 44 to the guide rail 4.
4, 45, and at this time, the first remaining thread removing piece 40 is in contact with the lower end position of the bobbin B.

Next, the lifting rod 34 is lowered with the opening/closing members 38 and 39 in the closed position. At the beginning of the descent, there is a slope 5 at the upper part of the guide grooves 56, 57.
8, 59 are formed, the guide rail 5
4 and 55 are gradually expanded by rollers 52 and 53,
The opening/closing members 38, 39 are slightly closed in the direction of arrow C in FIG. 7 via the pressing pieces 43, 44.

Further, as the bobbin chuck 35 descends, the remaining thread Y wound around the bobbin B is removed by the first remaining thread removal piece 40.
The remaining yarn Y is scraped upward, and the remaining yarn Y is completely removed from the bobbin B by the second and third removal pieces 41 and 42.

The lower end of the bobbin chuck 35 is the stopper 65, 6.
6, the conical surface 82 of the lifting rod 34 contacts the small diameter portions 76 of the chuck pieces 70, 71 and expands them in the direction of arrow d in FIG. At the same time, it is guided by bobbin guides 62 and 63 and inserted into the peg 32 of the tray 22 waiting on the conveyor 33.

Here, the outer periphery of the bobbin B normally has a slightly tapered surface, but due to the closing displacement of the opening/closing members 38 and 39 during the lowering process of the lifting rod 34, the remaining thread removal piece 40, 41, 42
follows and contacts the tapered surface of the bobbin B faithfully. The remaining threads Y remaining on the remaining thread removing pieces 40, 41, 42 are removed by suction by a suction means such as a suction pipe, and at the same time, the tray 22 in which the empty bobbin B is inserted is released from its stop. It is transferred to the next process by a conveyor 33.

The remaining thread removing device ST1 removes the remaining thread during the movement when the bobbin B is once removed from the tray 22 and then reinserted into the tray. Of course, it is also possible to apply a device that removes the remaining yarn while standing, and in this case, a pressing member that presses the upper end of the bobbin is provided in place of the bobbin chuck 35 in the device ST1 of the embodiment, and a pair of opening/closing members 38 and 39 are provided. With the bobbin placed on the tray, the pressing member presses the bobbin head, and the removal pieces 40, 41, 42 of the opening/closing members 38, 39 descend to the lower part of the thread layer of the bobbin. Next, by closing the opening/closing members 38, 39 and raising the members 38, 39, it is possible to scrape off the remaining yarn. That is,
By reversing the movements of the bobbin and the removal pieces 40, 41, 42, the remaining yarn can be removed while the bobbin is placed on the tray. In this case, the bobbin guides 62 and 63 shown in FIG. 5 are unnecessary.

〔Effect of the invention〕

As described above, in the present invention, among the bobbins discharged from the winder, bobbins with residual yarn that cannot be re-supplied to the winder are replaced with empty bobbins from which residual yarn has been removed by the residual yarn removing device installed in the conveyance path. Since the bobbin is conveyed with the remaining thread, there is no need for the operator to make any adjustments.In addition, in a system that connects the winder and the spinning machine, the bobbin with residual yarn can be conveyed without taking it out from the conveyance path. Since the remaining yarn on the bobbin is removed by relative movement in the bobbin axial direction, the conveyance system can be made more compact, and there is no excess or shortage of empty bobbins, making quantity control easier.

[Brief explanation of drawings]

Fig. 1 is a schematic front view showing an example of a spinning winder to which the present invention is applied, Fig. 2 is a plan view thereof, Fig. 3 is a front view schematically showing another example of the spinning winder, and Fig. 4 is a plan view thereof. , FIGS. 5 to 7 are side views showing an example of the remaining thread removing device, FIG. 8 is a plan view showing the remaining thread removing piece, FIG. 9 is a side view of the bobbin chuck, FIG. 10 is a bottom view of the bobbin chuck, and FIG. FIG. 11 is a sectional view taken along line A-A in FIG. 10 in a state where the bobbin is gripped. 4... Winder, 8, 21... Conveyance path, ST
1, ST2...Remaining thread removal device.

Claims (1)

[Claims] 1 An opening/closing mechanism that has residual yarn removal pieces 40, 41, and 42 inside the conveyance path of the bobbin B discharged from the winder 4, and clamps the bobbin B inserted in the tray 22 and conveyed from both sides. Members 38, 39
A residual yarn removing device which removes residual yarn from the bobbin by relative movement in the bobbin axial direction between the bobbin B and the bobbin B.
A bobbin transport device equipped with ST1 and ST2.